ESPN is reporting that Mets reliever Scott Schoeneweis has been implicated in the ongoing steroids investigation of Signature Pharmaceuticals. The investigation has already led to 21 arrests and 10 guilty pleas.

The source who reviewed the invoices said that Schoeneweis spent $1,160 on the steroids. He received five packages from May 2003 through 2004, five of which contained testosterone and three of which contained stanozolol.

According to a source in Florida close to the ongoing investigation of Signature, Schoeneweis’ name appears on packages that were sent to Comiskey Park while the White Sox were battling to win the AL Central title in 2003. Two more shipments arrived at the stadium in 2004, months before Schoeneweis underwent arthroscopic surgery on his left elbow.

An aide to his agent, Scott Boras, was not able to make Schoeneweis available for an interview Monday, when the Mets cleaned out their lockers.

Scott Schoeneweis was signed to a 3-year $10.8 million dollar contract by the Mets after a season in which he had an ERA of 4.88. In his first season with the Mets he finished with an ERA of 5.03 in 70 games.